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4 years ago

The perimeter of the norwegian flag is 190 inches

Mathematics

1 answer:

rodikova [14]4 years ago

6 0

Answer:

Step-by-step explanation:

2 cause you divide and multiply

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What is the circumference of a circle with a radius of 6 inches?

kirill [66]

Answer:

37.7in

Step-by-step explanation:

C=2πr=2·π·6≈37.69911in

5 0

3 years ago

Read 2 more answers

How to find the value of x

Marta_Voda [28]

Well to find it add the numbers up because all together they equal 540 degrees then subtract 540 to the number it add up to.

6 0

3 years ago

About 13% of the population of a large country is nervous around strangersnervous around strangers. If two people are randomly

Molodets [167]

Answer:

1.69% probability both are nervous around strangers.

24.31% probability at least one is nervous around strangers.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they are nervous around strangers, or they are not. The people are chosen randomly, which means that the probability of a person being nervous around strangers is independent from other people. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

About 13% of the population of a large country is nervous around strangers.

This means that $p = 0.13$ .

Two people are randomly selected

This means that $n = 2$ .

What is the probability both are nervous around strangers?

This is $P(X = 2)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 2) = C_{2,2}.(0.13)^{2}.(0.87)^{0} = 0.0169$

1.69% probability both are nervous around strangers.

What is the probability at least one is nervous around strangersnervous around strangers?

This is $P(X \geq 1)$

$P(X \geq 1) = P(X = 1) + P(X = 2)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{2,1}.(0.13)^{1}.(0.87)^{1} = 0.2262$

$P(X = 2) = C_{2,2}.(0.13)^{2}.(0.87)^{0} = 0.0169$

$P(X \geq 1) = P(X = 1) + P(X = 2) = 0.2262 + 0.0169 = 0.2431$

24.31% probability at least one is nervous around strangers.

3 0

3 years ago

What is the equation of the line that is parallel to the given line and has an x-intercept of –3?

Scrat [10]

(3,1)(0,-1)
slope = (-1 - 1) / (0 - 3) = -2/-3 = 2/3...a parallel line will have the same slope

y = mx + b
slope(m) = 2/3
(-3,0)...x = -3 and y = 0
now we sub and find b, the y int
0 = 2/3(-3) + b
0 = -2 = b
2 = b

so ur parallel equation is : y = 2/3x + 2

6 0

3 years ago

Read 2 more answers

13x−6=<br> \,\,9x+14<br> 9x+14

goblinko [34]

Step-by-step explanation:

13x_6=9x+14

13x_9x=14+6

5x=20

x=20÷5

x=4

3 0

2 years ago